np_anova {CMHNPA}

np_anova function

Description

np_anova performs a nonparametric ANOVA.

Usage

np_anova(ordered_vars, predictor_vars, uvw)

Arguments

ordered_vars

a data frame for the ordered variables being assessed.

predictor_vars

a data frame for the un-ordered variables being assessed.

uvw

the degree being assessed. This should be a vector with length equal the number of elements in the ordered_vars data frame.

Details

Nonparametric ANOVA is a methodology that is applicable where one as an ordered response variable as well as both ordered response and predictor variables.

Value

Where there is only one ordered variable, the function returns a type III ANOVA table to test for differences of order uvw across the levels of the predictor_vars.

Where there is more than one ordered variable, the function returns a type III ANOVA table to test for differences in generalised correlations of order uvw across the levels of the predictor_vars.

References

Rayner, J.C.W and Livingston, G. C. (2022). An Introduction to Cochran-Mantel-Haenszel Testing and Nonparametric ANOVA. Wiley.

Examples

attach(jam)
np_anova(ordered_vars = sweetness, predictor_vars = data.frame(type,judge), uvw = 1)